22744142 has 8 divisors (see below), whose sum is σ = 35216832. Its totient is φ = 11005200.

The previous prime is 22744133. The next prime is 22744157. The reversal of 22744142 is 24144722.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183359 + ... + 183482.

It is an arithmetic number, because the mean of its divisors is an integer number (4402104).

Almost surely, 2^22744142 is an apocalyptic number.

22744142 is a deficient number, since it is larger than the sum of its proper divisors (12472690).

22744142 is a wasteful number, since it uses less digits than its factorization.

22744142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366874.

The product of its digits is 3584, while the sum is 26.

The square root of 22744142 is about 4769.0818822914. The cubic root of 22744142 is about 283.3282327417.

Adding to 22744142 its reverse (24144722), we get a palindrome (46888864).

The spelling of 22744142 in words is "twenty-two million, seven hundred forty-four thousand, one hundred forty-two".